bugtraq - RE: Microsoft DNS resolver: deliberately sabotaged hosts-file lookup

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <011401c663c9$e0866c00$a600100a@zks.com>
Date: Wed, 19 Apr 2006 11:56:53 -0400
From: Mario Contestabile <marioc@...puter.org>
To: 'Joachim Schipper' <j.schipper@...h.uu.nl>,
	full-disclosure@...ts.grok.org.uk, bugtraq@...urityfocus.com
Subject: RE: Microsoft DNS resolver: deliberately sabotaged
	hosts-file lookup



Fyi, Any NT app can bypass the local hosts file using DnsQuery(...,...,
DNS_QUERY_NO_HOSTS_FILE, ...);




marioc@...puter.org
http://bubbler.net/outlaw/blog


 

-----Original Message-----
From: Joachim Schipper [mailto:j.schipper@...h.uu.nl] 
Sent: April 13, 2006 8:13 PM
To: full-disclosure@...ts.grok.org.uk; bugtraq@...urityfocus.com
Subject: Re: [Full-disclosure] Microsoft DNS resolver: deliberately
sabotaged hosts-file lookup

On Thu, Apr 13, 2006 at 06:29:15PM +0100, Dave Korn wrote:
> 
>   Hey, guess what I just found out:  Microsoft have deliberately 
> sabotaged their DNS client's hosts table lookup functionality.

> (...) I'd try to block (Windows Media Player) it in my hosts file.

>   Microsoft DNS client special-cases 'go.microsoft.com' and refuses to 
> look it up in the hosts file.

>   I'm running fully up-to-date Windows XP SP2.  I don't have any pfw 
> software that could conceivably be interfering, and the windows 
> firewall is running with more-or-less the default settings (I've only 
> added a couple of exceptions, no other changes).  I don't think this is a
false positive.

_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.grok.org.uk/full-disclosure-charter.html
Hosted and sponsored by Secunia - http://secunia.com/